N-Methyl-4-aminobenzyl sulfonamide, a key intermediate for synthesis of the pharmaceutical substance Sumatriptan, was prepared throught four steps.是什么意思_N-Methyl-4-aminobenzyl sulfonamide, a key intermediate for synthesis of the pharmaceutical substance Sumatriptan, was prepared throught four steps.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句